Epson Stylus Pro 7700M list error codes with quick guides

Epson Stylus Pro 7700M list error codes with quick guides

– Compatible Printer model: Epson Stylus Pro 7700M
– Epson Stylus Pro 7700M Error Codes with quick guides:

• Code: 1101
• Description: CR life error
  The number of Carriage movement cycles reached the specified upper limit. (Ink tube’s life)
• Troubleshooting Guides: Replace the ink tube (L & R), and clear the counter using the Service Program. In addition, check the statuses of the CR Motor, the driven pulley, the Carriage Unit, and the Head FFC, if any abnormal noise or wear is found, replace the corresponding part(s) along with the ink tube.

• Code: 1125
• Description: CR HP detection error
  The home position of the carriage unit is not detected.
• Troubleshooting Guides: Check the connection of the CR HP Sensor. Replace the CR HP Sensor. Check if the carriage lock is operating.

• Code: 1138
• Description: Over current error
  The electric current flowing when driving the motor is irregularly large. (To protect the motor driver) • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the CR Encoder and the Main Board Assy. Check the connection between the CR Motor and the Main Board Assy. Replace the CR Encoder Sensor. Replace the CR Motor.

• Code: 113A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if the Carriage Unit is correctly installed. Check if there is some foreign material on the driving section of the Carriage Unit. Check the connection between the CR Encoder and the Main Board Assy. Check the connection between the CR Motor and the Main Board Assy. Replace the CR Encoder Sensor. Replace the CR Motor.

• Code: 113B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the CR Encoder Sensor.

• Code: 113C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the CR Encoder and the Main Board Assy. Check the connection between the CR Motor and the Main Board Assy. Replace the CR Encoder Sensor.

• Code: 113D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 113E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the CR Encoder Sensor. Replace the Main Board Assy. Replace the CR Motor.

• Code: 113F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if the Carriage Unit is correctly installed. Check if there is some foreign material on the driving section of the Carriage Unit. Check the connection between the CR Encoder and the Main Board Assy. Check the connection between the CR Motor and the Main Board Assy. Replace the CR Encoder Sensor. Replace the CR Motor.

• Code: 122A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load between the PF Motor and the PF roller. Check the connection between the PF Encoder Sensor and the Main Board Assy. Check the connection between the PF Motor and the Main Board Assy. Replace the PF Encoder Sensor. Replace the PF Motor.

• Code: 122B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the PF Encoder Sensor.

• Code: 122C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the PF Encoder Sensor and the Main Board Assy. Check if there is some foreign material causing extra load between the PF Motor and the PF roller. Replace the PF Encoder Sensor.

• Code: 122D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 122E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the PF Encoder Sensor. Replace the Main Board Assy. Replace the PF Motor.

• Code: 122F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load between the PF Motor and the PF roller. Check the connection between the PF Encoder Sensor and the Main Board Assy. Check the connection between the PF Motor and the Main Board Assy. Replace the PF Encoder Sensor. Replace the PF Motor.

• Code: 131B
• Description: Head driver (transmission gate) overheat error
  The temperature of the Head Driver rises, and reaches the specified level.
• Troubleshooting Guides: Check the connection of the Head FFC, and if there is abnormality (slant connection or the like), correct it. Replace the Printhead.

• Code: 13F0
• Description: ICL operation error
  IC Cover Unlock Solenoid is not operating normally.
• Troubleshooting Guides: Check the connection between the Cartridge Cover Sensor and the Main Board Assy. Replace the Cartridge Cover Sensor (L/R) with new ones. Replace the Main Board Assy.

• Code: 1411
• Description: Select error
  Valve select operating failed.
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 1412
• Description: Pump life error
  The number of pump counter reached the specified upper limit. (Pump Motor’s life (Ink System Unit’s life))
• Troubleshooting Guides: Replace the Ink System Unit , and clear the counter using the Service Program.

• Code: 1419
• Description: Pump release error
  Pump release operation failed.
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 141A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 141B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Ink System Unit.

• Code: 141C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 141D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 141E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 141F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 1427
• Description: CSIC destination setting error
  An Ink Cartridge for a wrong destination has been installed. The Ink Holder is not adjusted correctly.
• Troubleshooting Guides: Replace the Ink Cartridge with a correct one for this printer. Start the printer in the Serviceman Mode without setting the ink cartridge, and then execute “Ink Holder Adjustment” from the Service Program.

• Code: 1428
• Description: Ink Holder adjustment error
  The adjustment statuses of the Ink Holder on the left and on the right are not the same. This service call error does not occur for Epson Stylus Pro 7700/7710 /9700/9710.
• Troubleshooting Guides: 1. While opening the cover of the Ink Holder (to avoid a service call error from occurring), start the printer in the Serviceman Mode. 2. Execute “Ink Holder Adjustment” from the Service Program.

• Code: 1430
• Description: Holder ink pad error
  The number of replacement counter of the ink cartridges has reached the specified life. (the life of the waste ink pad attached to the ink cartridge holder)
• Troubleshooting Guides: Check if the waste ink pads attached to the ink cartridge holder are contaminated. If it has already absorbed a considerable amount of ink, exchange the ink cartridge holder (L and R), and clear the counter using the Service Program.

• Code: 1431
• Description: Ink selector life error
  The number of operation counter of the Ink Selector has reached the specified life.
• Troubleshooting Guides: Replace the Ink Selector, and clear the counter using the Service Program.

• Code: 1434
• Description: IC cover unlock error
  The IC Cover can not be opened.
• Troubleshooting Guides: Check if the IC Cover is correctly installed. Check if the sensor which detects the open/closed status of the cover, and the solenoid which locks the cover have any defects. Replace the Cartridge Cover Sensor (L/R) with new ones.

• Code: 1438
• Description: Maintenance tank error
  A Maintenance Tank for a wrong destination has been installed.
• Troubleshooting Guides: Replace the Maintenance Tank with a correct one for this printer.

• Code: 1439
• Description: Cap error
  The home position of the Cap is not detected.
• Troubleshooting Guides: Check the connection of the Cap HP Sensor. Replace the Ink System Unit.

• Code: 143A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 143B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Ink System Unit.

• Code: 143C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 143D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.e P.264)
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 143E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 143F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 144A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Pressurizing Unit and the Main Board Assy. Replace the Pressurizing Unit.

• Code: 144B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Pressurizing Unit.

• Code: 144C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Pressurizing Unit and the Main Board Assy. Replace the Pressurizing Unit.

Solve Epson Stylus Pro 7700M Error codes

• Code: 144D
• Description: Driving time-out error.
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 144E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Pressurizing Unit. Replace the Main Board Assy.

• Code: 144F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Pressurizing Unit and the Main Board Assy. Replace the Pressurizing Unit.

• Code: 1489
• Description: Wiper error
  The home position of the Wiper is not detected.
• Troubleshooting Guides: Check the connection of the Wiper HP Sensor. Replace the Ink System Unit.

• Code: 148A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the Wiper system. Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 148B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Ink System Unit.

• Code: 148C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 148D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 148E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Ink System Unit. Replace the Main Board Assy.

• Code: 148F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check the connection between the Ink System Unit and the Main Board Assy. Replace the Ink System Unit.

• Code: 1494
• Description: Ink selector error
  Ink select operation failed. • Ink Selector Motor is broken. • Ink Selector Sensor is broken. • Ink Selector is overloaded.
• Troubleshooting Guides: Check the connection between the Ink Selector and the Main Board Assy. Replace the Ink Selector. Replace the Main Board Assy.

• Code: 1496
• Description: Ink selector sensor error detection
  Ink select operation failed. • Ink Selector Sensor is broken.
• Troubleshooting Guides: Check the connection between the Ink Selector and the Main Board Assy. Replace the Ink Selector. Replace the Main Board Assy.

• Code: 1497
• Description: Switching time-out error
  The ink selecting operation does not end even after the specified period of time has passed because the Ink Selector (the sensor or motor) is broken.
• Troubleshooting Guides: Replace the Ink Selector.

• Code: 149D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 1501
• Description: Release motor phase detection error
  When releasing the driven roller, the Roller Release HP Sensor cannot detect the change of status.
• Troubleshooting Guides: Check the installation status of the Roller Release HP Sensor. Check the connection between the Roller Release HP Sensor and the Main Board Assy. Replace the Roller Release HP Sensor.

• Code: 150C
• Description: PG phase detection error
  During PG operation, the PG HP Sensor cannot detect the change of status.
• Troubleshooting Guides: Check the installation status of the PG HP Sensor. Check the connection between the PG HP Sensor and the Main Board Assy. Replace the PG HP Sensor.

• Code: 151A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load between the APG Motor and the carriage unit. Check the connection between the APG Motor Sensor and the Main Board Assy. Replace the APG Motor.

• Code: 151B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the APG Motor.

• Code: 151C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the APG Motor Sensor and the Main Board Assy. Replace the APG Motor.

• Code: 151D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 151E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the APG Motor. Replace the Main Board Assy.

• Code: 151F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load between the APG Motor and the carriage unit. Check the connection between the APG Motor Sensor and the Main Board Assy. Replace the APG Motor.

• Code: 152A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the Rewind Unit. Check the connection between the Rewind Unit and the Main Board Assy. Replace the Rewind Motor.

• Code: 152B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Rewind Motor.

• Code: 152C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Rewind Unit and the Main Board Assy. Replace the Rewind Motor.

• Code: 152D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 152E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Rewind Motor. Replace the Main Board Assy.

• Code: 152F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the Rewind Unit. Check the connection between the Rewind Unit and the Main Board Assy. Replace the Rewind Motor.

• Code: 1530
• Description: Driven roller HP detection error
  The home position of the Driven Pulley is not detected.
• Troubleshooting Guides: Check the connection of the Roller Release HP Sensor. Check if the Driven Pulley rotates smoothly without any overload. Replace the Roller Release HP Sensor. Replace the Driven Roller Release Motor.

• Code: 1536
• Description: Pressurizing reset error
  The pressurizing cannot be reset. The Pressure Sensor remains on, even after the pressurizing has been reset.
• Troubleshooting Guides: Replace the Pressurizing Unit.

– Get more error code list with quick guide to fix printer product, click here
– About get help with reseting Epson inkpad or others, click here

• Code: 1537
• Description: Pressurizing error
  The motor driving does not end even after the specified period of time has passed.
• Troubleshooting Guides: Check the connection of the Pressurizing Unit. Check the connection of the Pressure tubes. Replace the Pressurizing Unit.

• Code: 153A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the driven roller release system. Check the connection between the Driven Roller Release Motor and the Main Board Assy. Replace the Driven Roller Release Motor.

• Code: 153B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Driven Roller Release Motor.

• Code: 153C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Driven Roller Release Motor and the Main Board Assy. Replace the Driven Roller Release Motor.

• Code: 153D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 153E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Driven Roller Release Motor. Replace the Main Board Assy.

• Code: 153F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the driven roller release system. Check the connection between the Driven Roller Release Motor and the Main Board Assy. Replace the Driven Roller Release Motor.

• Code: 1540
• Description: Cutter HP detection error
  The home position of the Cutter is not detected.
• Troubleshooting Guides: Check the connection of the Cutter Sensor. Replace the Cutter Unit.

• Code: 1541
• Description: Cutter return error
  Abnormal Cutter operation is detected. • Slipping of the teeth of the timing belt. • Slack of the timing belt. • Abnormality of the cutter sensor.
• Troubleshooting Guides: Check the connection between the Cutter Unit and the Main Board Assy. Replace the Cutter Unit.

• Code: 1549
• Description: Motor disconnection error
  The Cutter Unit operation is not detected even the electric current flows when the printer is turned on. • Encoder cable is damaged. • Motor cable is damaged. • Encoder failure • Motor failure • Irregular load
• Troubleshooting Guides: Check the connection between the Cutter Unit and the Main Board Assy. Replace the Cutter Unit.

• Code: 154A
• Description: Overload error
  The electric current flowing when driving the motor is irregularly large. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the Cutter Unit. Check the connection between the Cutter Unit and the Main Board Assy. Replace the Cutter Unit.

• Code: 154B
• Description: Over speed error
  Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Encoder failure
• Troubleshooting Guides: Replace the Cutter Unit.

• Code: 154C
• Description: Reversing error
  Detects that it is being driven in the opposite direction to the specified driving direction. • The polarity of encoder cable is opposite. • The polarity of motor cable is opposite. • Encoder failure • Irregular load
• Troubleshooting Guides: Check the connection between the Cutter Unit and the Main Board Assy. Replace the Cutter Unit.

• Code: 154D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 154E
• Description: Velocity deviation error
  Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Encoder failure • Motor driver failure • Motor failure
• Troubleshooting Guides: Replace the Cutter Unit. Replace the Main Board Assy.

• Code: 154F
• Description: Lock error
  Detects that it is being driven at an irregularly slower speed than the specified value. • Encoder cable is damaged. • Motor cable is damaged. • Irregular load • Encoder failure • Motor failure
• Troubleshooting Guides: Check if there is some foreign material causing extra load on the Cutter Unit. Check the connection between the Cutter Unit and the Main Board Assy. Replace the Cutter Unit.

• Code: 1551
• Description: Paper thickness determining error
  During detection of paper thickness, the thickness cannot be determined because chattering occurs.
• Troubleshooting Guides: Replace the Main Board Assy.

• Code: 1561
• Description: Paper thickness at power-on error
  At power-on, the paper thickness sensor detects more than 2.2 mm paper thickness.
• Troubleshooting Guides: Execute the Paper Thickness Sensor Position Adjustment. Replace the Paper Thickness Sensor.

• Code: 1800
• Description: AID voltage error
  Due to the leak of AID current, the specified voltage cannot be achieved.
• Troubleshooting Guides: Check the flushing box and around it, and remove ink and dust if attached on it. (Electric current may leak through the accumulated ink or dust.) Replace the AID Board. Replace the Ink System Unit.

• Code: 1A23
• Description: Incorrect RTC data error
  The value information on various absolute time stored on NVRAM is abnormal.
• Troubleshooting Guides: Check if the RTC backup battery is installed properly. Replace the Main Board Assy.

• Code: 1A26
• Description: RTC Access T/O error
  The RTC circuit on the Main Board Assy malfunctions.
• Troubleshooting Guides: 1. Turn the power off and remove the RTC backup battery. 2. After several seconds, re-attach the battery and turn the power back on. 3. If the printer recovers from the error, set the date and time using the Service Program.

• Code: 1A37
• Description: Thermistor error
  The Head FFC is not connected correctly. The thermistor detects a temperature out of the specification. The thermistor is broken.
• Troubleshooting Guides: Replace the Printhead.

• Code: 1A38
• Description: Transistor environmental temperature error
  The transistor has a defect. The thermistor detects a temperature out of the specification.
• Troubleshooting Guides: Replace the Printhead.

• Code: 1A39
• Description: Head error
  The drive circuit in the Printhead is damaged due to a slant connection of the Head FFC, etc., or the fuse of the Main Board Assy may has blown because of such a wrong connection.
• Troubleshooting Guides: 1. Check the connection of the Head FFC to the Sub Board Assy, and correct it if there is a slant connection or the cable is disconnected. If any connection terminal of the Head FFC is damaged, replace it with a new one. 2. Replace the Printhead. 3. If the printer does not recover from the error after trying 1 and 2., replace the Main Board Assy. (The fuse of the Main Board Assy may have blown due to a slant connection of the Head FFC.)

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